SparkFun GNSS Flex Breakout

Unlock the full potential of your GNSS Flex Modules with the SparkFun GNSS Flex Breakout. This versatile carrier board is the ultimate development tool for the GNSS Flex ecosystem, providing complete access to every interface of your chosen module in a simple, easy-to-use form factor. Whether you're prototyping on a breadboard, integrating with a flight controller, or creating a custom navigation system, this breakout gives you the flexibility you need.

The breakout board features the standardized 2x10 male headers to securely connect any of our GNSS Flex modules, instantly making all of their capabilities accessible.

GNSS Flex Breakout with recommended GNSS Multi-Band L1/L2/L5 Surveying Antenna and LG290P Flex Module.

A Hub for Global Connectivity

The GNSS Flex Breakout is designed to be your all-in-one interface solution for the GNSS Flex line, offering a wide array of connection options for any project.

• Full Pin Access: Standard 0.1"-pitch headers break out all module interfaces, including up to four UARTs, I²C, USB, SDIO, and dual PPS/Event signals.
• Dual-Mode USB: Connect directly to your module's native USB port or use the onboard CH342 USB-to-UART bridge for easy serial communication and configuration. The bridge can be quickly disabled if you need exclusive access to the UART pins.
• Pixhawk-Ready JST Ports: Two 6-pin JST connectors with the standard Pixhawk pinout allow for a plug-and-play connection to flight controllers or telemetry radios for receiving RTCM correction data.

Versatile Power Management

Power your project your way. The GNSS Flex Breakout is engineered with highly flexible power options to suit any application.

• Multiple Inputs: Provide power via any of the USB connectors or the dedicated VIN pin.
• Configurable Voltage Output: By default, the JST connectors output 5V to power peripherals. Onboard jumpers allow you to easily switch this to 3.3V or isolate the circuit completely, using the pin as a dedicated 5V input.

Status Indicators & Connectivity

Onboard LEDs provide instant visual feedback on the status of your GNSS module, including indicators for Power, PPS lock, PVT (Position, Velocity, Time) fix, and RTK fix.

Depending on the GNSS Flex Module selected, this product may require an external antenna. Users have a few options for connecting an external GNSS antenna to their GNSS receiver.

• GNSS Flex modules that require an external antenna will come with a U.FL connector. The antenna can be connected directly to the Flex module if desired.
• For a sturdier connection, two SMA connectors are available on the SparkFun GNSS Flex Breakout. Each is bridged to a U.FL connector. Users need to jumper the U.FL connectors on both the GNSS Flex module and SparkFun GNSS Flex Breakout with a short U.FL cable.

• Design Files
  • Schematic
  • KiCad Files
  • Board Dimensions
  • STEP File
• Component Documentation
  • CH342 Datasheet
  • RT9080 Datasheet
  • AP7361C Datasheet
  • JST-GH Datasheet
• Hookup Guide
• Building a GNSS System
• Qwiic Info Page
• GitHub Hardware Repository